package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.service.CategoryService;
import org.apache.ibatis.annotations.ResultMap;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/category")
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /**
     * 新增分类
     * @param category
     * @return
     */
    @PostMapping
    public R<String> saveCategory(@RequestBody Category category){
        categoryService.save(category);
        return R.success("新增分类成功");
    }

    /**
     * 分页查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> page (int page, int pageSize){
        //分页查询条件
        Page<Category> categoryPage = new Page<>(page,pageSize);
        //创建条件构造器
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        //添加排序条件
        lqw.orderByAsc(Category::getSort);

        categoryService.page(categoryPage,lqw);

        return R.success(categoryPage);
    }

    /**
     * 删除分类
     * @param id
     * @return
     */
    @DeleteMapping
    public R<String> delete(Long id){
        categoryService.removeCategory(id);
        return R.success("分类信息删除成功");
    }

    /**
     * 修改菜品分类
     * @param category
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody Category category){
        categoryService.updateById(category);
        return R.success("分类信息修改成功");
    }

    /**
     * 查询分类数据，用于添加菜品信息
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> list(Category category){
        //创建查询条件构造器
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        //添加根据type查询的条件
        lqw.eq(category.getType() != null,Category::getType,category.getType());
        //添加排序条件
        lqw.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);

        List<Category> categories = categoryService.list(lqw);

        return R.success(categories);

    }


}
